Jar for butter



(N0 Model.)

' D. W. NORRIS.

JAR FOR BUTTER, &0.

No. 319,841. Patented June 9, 1885.

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DANIEL W. Nonnis, on ELGI'N, ILLINOIS.

JAR FOR BUTTER, 80C

SPECIFICATION forming part of Letters Patent No. 319,841, dated June 9, 1885.

Application filed March 23, 1885. (No model.)

To all whom, it may concern:

Be it known that I, DANIEL W. NoRRIs, of Elgin, in the county of Kane and State of Illinois, haveinvented certain new and useful linprovementsin Jars for Butter 85c. and I do hereby declare the following to be a full,clear, and exact description of the same, reference being bad to the accompanying drawings, forming a part of this specification, and to the figures and letters of reference marked thereon.

The deterioration of preserves, butter, and other analogous materials when put up in ordinary jars or cans is due largely to thepresence of air within such jars, and whilein the canning of vegetables,shell-fish, and other articles put up in a cooked state the exclusion of the air from the cans can be effected by pricking a hole in the filled cans, then placing the cans in a boiler and subjecting them to a degree of heat'above the boilingpoint, andthen closing the hole by solder or otherwise, such a process is entirely inapplicable to materials such as butter, where the application of heat is not only not desirable, but decidedly and fatally objectionable.

It is the object therefore of my invention to provide an improved jar or can, from which the air can be excluded by a very simple mechanical manipulation and without the use of heat.

This object I accomplish by combining with a jar which is externally screw-threaded at its mouth, a removable sheet-metal top or cap formed with an inner flange and a screw-threaded outer flange,bet-ween which the edge of the mouth of the jar is adapted to be confined, and having a central conical portion provided with a perforation or vent, whereby,wheneversaid top or cover is screwed upon the jar, the contents of the latter will be displaced by the central conical portion and the air expelled through the said perforation, substantially as will be hereinafter fully pointed out, the perforations being then closed by a drop of solder, to effectually seal the jar.

In the accompanying drawings, Figure 1 represents an elevation of a butter-jar constructed in accordance with my invent-ion, its

upper portion audits cap or cover being shown in section. Fig. 2 is a top view of the same. Figs, 3 and 4 are views of modified forms of tops.

The letter A indicates the body of the jar, made of glass, earthenware, or any other suitable material, and preferably exteriorl y screwthreaded at its mouth, as shown.

B represents the top or cap constructed of sheet metal and having an inward flange, b, an outward screwthreaded flange, b, and a raised and conical central portion, b provided with an aperture at its apex or highest point 12 My design in thus forming and perforating the top is to cause it, when forced down' to its.

seat, to displace the upper portion of the butter and crowd it up toward and to the central perforation and thus drive out the objectionable air from the interior of the jar, the said perforation being then closed by a drop of solder, or in any othersuitable manner, as will be readily understood.

Any suitable packing material-such as treated or prepared paper, india-rubber, or other suitable material may be interposed between the top and the jar, as shown at d in Figs. 1 and 3, and when considerable pressure is required in displacing the butter or other materialby the operation of forcing the top to its seat, it may be found desirable to make the inner flange of the top vertical, as shown in Fig. 4, so as to fit the interior .of the jar more like a piston. WVith such a construction there would also be less liability of the material. being crowded into the joint between the top and the jar.

For convenience in removing the contents of the jar, thelatter is preferably made to taper outward from bottom to top slightly, as shown in Fig. 1.

Butter and other analogous articles put up in jars madein accordance with my invention, wherein all air is practically excluded, will be found to keep much longer ina sweet fresh condition than, in jars where an air-space is left beneath the cover.

I claim as my invention The combination, with the jar externally screw-threaded at its mouth, of a removable ed to be closed by a drop of solder, subatomscrew-threaded sheet-metalt topor cap having' tiall y as described, and for the purpose sp eci- 10 a screw-threaded outer flange and a plain infied.

ner flange between which the edge of the l 5 month of the jar is confined, and having its DANIEL NORRIS central portion made conical, with the con: Witnesses.

cavity on the inner side, andprovided with a A. L. .WILs0N,

perforation at the apex of the concavity adapt- WM. S. BROWN. 

